Peter Pinkney (born 1956) is a British trade unionist, who served as President of the National Union of Rail, Maritime and Transport Workers (RMT) from December 2012. until 2015. Born in Saltburn, Pinkney completed an apprenticeship as a welder and joined the Amalgamated Society of Boilermakers. He found employment at a steelworks in Middlesbrough, and became a junior shop steward. However, when the works closed in 1978, he was unable to find a new job in the industry and instead joined the Royal Navy, serving as a submariner.